Pneumatic cushioning material

ABSTRACT

A pneumatic cushioning material includes: a first air cell part including at least one air cell containing air; a second air cell part including at least one air cell containing air; a third air cell part including at least one air cell containing air; a first connection that connects the first air cell part and the second air cell part together; a second connection that connects the first air cell part and the third air cell part together, wherein the first connection is bendable by a first rotation axis, the second connection is bendable by a second rotation axis, and an angle at which a line segment obtained by extending the first rotation axis and a line segment obtained by extending the second rotation axis intersect is at a range of greater than 0 degrees and less than 180 degrees.

The entire disclosure of Japanese patent Application No. 2020-125732, filed on Jul. 22, 2020, is incorporated herein by reference in its entirety.

BACKGROUND Technological Field

The present invention relates to a pneumatic cushioning material, and more particularly to a pneumatic cushioning material that is inserted into a gap between an article and a packing box for protection of the article when the article to be packed is stored in the packing box.

Description of the Related art

In transportation of articles such as printers, copiers, and PCs, it is important to protect the articles from vibrations and shocks during transportation. Due to such a demand for protection of articles, foamed resin cushioning materials have been mainly used to fill the gap between the packing box and the articles. However, it is considered desirable to use a pneumatic cushioning material from a viewpoint of reducing an environmental load.

As a conventional pneumatic cushioning material, as described in JP 2018-131258 A, a material is known that includes two air cells and in which an intermediate band-shaped portion exists between the two air cells. An air flow passage is formed inside the intermediate band-shaped portion,, and the two air cells communicate with each other through the air flow passage.

However, in the conventional pneumatic cushioning material, even if the two air cell parts are fastened to the article with tape or the like, they are in contact with only two surfaces of the article. For this reason, in the conventional pneumatic cushioning material, if the tape fastening one of the air cell parts is peeled off due to vibration during transportation, the air cell part is shifted from the article. In this case, in the conventional pneumatic cushioning material, the tape fastening the other air cell part is also easily peeled off, and as a result, there has been a case where the pneumatic cushioning material itself comes off from the article during transportation.

Summary

The present invention has been made in view of the circumstances described above, and an object of the present invention is to provide a pneumatic cushioning material that does not easily shift or fail after packing.

To achieve the abovementioned object, according to an aspect of the present invention, a pneumatic cushioning material reflecting one aspect of the present invention comprises: a first air cell part including at least one air cell containing air; a second air cell part including at least one air cell containing air; a third air cell part including at least one air cell containing air; a first connection that connects the first air cell part and the second air cell part together; a second connection that connects the first air cell part and the third air cell part together, wherein the first connection is bendable by a first rotation axis, the second connection is bendable by a second rotation axis, and an angle at which a line segment obtained by extending the first rotation axis and a line segment obtained by extending the second rotation axis intersect is in a range of greater than 0 degrees and less than 180 degrees.

BRIEF DESCRIPTION OF THE DRAWINGS

The advantages and features provided by one or more embodiments of the invention will become more fully understood from the detailed description given hereinbelow and the appended drawings which are given by way of illustration only, and thus are not intended as a definition of the limits of the present invention:

FIG. 1 is a plan view illustrating a pneumatic cushioning material of a first embodiment;

FIG. 2 is a perspective view illustrating the pneumatic cushioning material of the first embodiment;

FIG. 3 is a plan view for explaining dimensions of respective parts of the pneumatic cushioning material of the first embodiment;

FIGS. 4A and 4B are side views for explaining dimensions of respective parts of the pneumatic cushioning material of the First embodiment;

FIG. 5 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material of the first embodiment to an article;

FIG. 6 is a perspective view illustrating an example of another method of fastening the pneumatic cushioning material of the first embodiment to the article;

FIG. 7 is a plan view illustrating a configuration of a pneumatic cushioning material of a second embodiment;

FIG. 8 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material of the second embodiment to the article;

FIG. 9 is a plan view illustrating a configuration of a pneumatic cushioning material of a third embodiment;

FIG. 10 is a plan view illustrating a configuration of a pneumatic cushioning material of a fourth embodiment;

FIG. 11 is a plan view illustrating a configuration of a pneumatic cushioning material of a fifth embodiment;

FIG. 12 is a perspective view illustrating an example of a method of fastening a pneumatic cushioning material to an article as a sixth embodiment:

FIG. 13 is a plan view illustrating a configuration of a pneumatic cushioning material of a seventh embodiment;

FIG. 14 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material of the seventh embodiment to an article;

FIG. 15 is a plan view illustrating a configuration of a polygonal-application cushioning material of an eighth embodiment;

FIG. 16 is a perspective view illustrating an example of a method of fastening the polygonal-application cushioning material of the eighth embodiment to an article;

FIG. 17 is a perspective view for explaining a pneumatic cushioning material of a ninth embodiment;

FIG. 18 is a plan view illustrating a configuration of the pneumatic cushioning material of the ninth embodiment;

FIG. 19 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material of the ninth embodiment to an article;

FIG. 20 is a plan view illustrating another configuration of the pneumatic cushioning material of the ninth embodiment,

FIG. 21 is a perspective view illustrating an example of another method of fastening the pneumatic cushioning material of the ninth embodiment to the article;

FIG. 22 is an enlarged perspective view illustrating a first modification of a first coupling;

FIG. 23 is an enlarged perspective view illustrating a first modification of the second coupling;

FIG. 24 is an enlarged perspective view illustrating the first modification of the second coupling;

FIG. 25 is an enlarged plan view illustrating a second modification of the coupling;

FIG. 26 is an enlarged plan view illustrating a third modification of the coupling;

FIG. 27 is a plan view of the pneumatic cushioning material for explaining a fourth modification of the coupling;

FIG. 28 is a plan view of the pneumatic cushioning material for explaining the fourth modification of the coupling;

FIG. 29 is a perspective view illustrating a coupled state by a sheet piece;

FIG. 30 is a perspective view for explaining a polygonal-application cushioning material of a tenth embodiment;

FIG. 31 is a plan view illustrating a configuration of the polygonal-application cushioning material according to the tenth embodiment;

FIG. 32 is a perspective view illustrating an example of a method of fastening the polygonal-application cushioning material of the tenth embodiment to an article;

FIG. 33 is a plan view illustrating a configuration of a pneumatic cushioning material of an eleventh embodiment;

FIG. 34 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material of the eleventh embodiment to an article;

FIG. 35 is a plan view illustrating a configuration of a pneumatic cushioning material of a twelfth embodiment;

FIG. 36 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material of the twelfth embodiment to an article;

FIG. 37 is a plan view illustrating a configuration of a pneumatic cushioning material of a thirteenth embodiment;

FIG. 38 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material of the thirteenth embodiment to an article;

FIG. 39 is a plan view illustrating a configuration of a pneumatic cushioning material of a fourteenth embodiment;

FIG. 40 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material of the fourteenth embodiment to an article;

FIG. 41 is a plan view illustrating a configuration of a pneumatic cushioning material of a fifteenth embodiment;

FIG. 42 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material of the fifteenth embodiment to an article;

FIG. 43 is a plan view illustrating a configuration of a pneumatic cushioning material of a sixteenth embodiment;

FIG. 44 is a plan view illustrating a configuration of a pneumatic cushioning material of a seventeenth embodiment;

FIG. 45 is a plan view illustrating a confirmation of a pneumatic cushioning material of an eighteenth embodiment;

FIG. 46 is a plan view illustrating a configuration of a pneumatic cushioning material of a nineteenth embodiment;

FIG. 47 is a plan view illustrating a configuration of a pneumatic cushioning material of a comparative example;

FIGS. 48A and 48B are perspective views illustrating a state in which the pneumatic cushioning material of the comparative example is taped to an article;

FIG. 49 is a perspective view illustrating a state in which two pneumatic cushioning materials of the comparative example are taped to the article; and

FIG. 50 is a perspective view illustrating a state in which three pneumatic cushioning materials of the comparative example are taped to the article.

DETAILED DESCRIPTION OF EMBODIMENTS

Hereinafter, one or more embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the disclosed embodiments. Note that, in the description of the drawings, the same elements are denoted by the same reference numerals, and duplicate descriptions will int be provided. Furthermore, for members having the same shape, reference numerals of sonic members are omitted. Furthermore, dimensional ratios of the drawings are exaggerated for convenience of description and may be different from actual ratios.

First Embodiment

FIG. 1 is a plan view illustrating a pneumatic cushioning material of a first embodiment. FIG. 2 is a perspective view .illustrating the pneumatic cushioning material of the first embodiment. FIG. 3 is a plan view for explaining dimensions of respective parts of the pneumatic cushioning material of the first embodiment. FIGS. 4A and 4B are side views for explaining dimensions of respective parts of the pneumatic cushioning material of the first embodiment. FIG. 4A is a side view seen from a direction of an arrow A in FIG. 3, and FIG. 4B is a side view seen from a direction of an arrow B in FIG. 3.

As illustrated in FIGS. 1 and 2, a pneumatic cushioning material 110 of the first embodiment includes a first air cell part 101, a second air cell part 102, and a third air cell part 103.

The first air cell part 101, the second air cell part 102, and the third air cell part 103 each include at least one air cell 100 containing air. The sizes of the air cells 100 in the respective first air cell part 101, second air cell part 102, and third air cell part 103 may be the same size or different sizes. Furthermore, the number of the air cells 100 in each of the first air cell part 101, the second air cell part 102, and the third air cell part 103 may be one or a plurality. An embodiment in which a plurality of air cells 100 is included in one air cell part will be described in an embodiment described later.

The first air cell part 101 and the second air cell part 102 are connected together by a first connection 105. The first air cell part 101 and the third air cell part 103 are connected together by a second connection 106.

The first connection 105 and the second connection 106 are air passages and allow air to flow between the first air cell part 101, the second air cell part 102, and the third air cell part 103. As a result, when any of the first air cell part 101, the second air cell part 102, and the third air cell part 103 is compressed, the pneumatic cushioning material 110 can move air to other air cells 100, and can prevent the air cell 100 from bursting. However, the first connection 105 and the second connection 106 do not have to be air passages.

The first air cell part 101, the second air cell part 102, the third air cell part 103, the first connection 105, and the second connection 106 are all formed on a base sheet 108. The base sheet 108 is a glue allowance portion when sheet materials are overlapped to form the air cell 100 and the like. However, the base sheet 108 (glue allowance portion) does not have to be provided.

A material used as the pneumatic cushioning material 110 is, for example, a synthetic resin such as polyethylene, polypropylene, or polyvinyl chloride. Preferably, low density polyethylene is used,

The first connection 105 between the first air cell part 101 and the second air cell part 102 can rotate at least 90 degrees around a first rotation axis axr1. Similarly, the second connection 106 between the first air cell part 101 and the third air cell part 103 can rotate at least 90 degrees around a second rotation axis axr2.

A line segment (same as axr1 in FIG. 3) obtained by extending the first rotation axis axr1 and a line segment (same as axr2 in FIG. 3) obtained by extending the second rotation axis axr2 intersect. An angle ca of the intersecting line segments is in a range of greater than 0 degrees (not including 0 degrees, the same applies to other descriptions) and less than 180 degrees.

In the first embodiment, the angle ca at which the line segment obtained by extending the first rotation axis axr1 and the line segment obtained by extending the second rotation axis axr2 intersect is approximately 90 degrees.

Here, “approximately 90 degrees” is used because, as described above, a flexible material is used for the pneumatic cushioning material 110, so that it is difficult to make the angle exactly 90 degrees in manufacturing. Thus, “approximately 90 degrees” includes manufacturing errors. Hereinafter, “approximately . . . ” has the same meaning.

With reference to FIGS. 3, 4A and 4B, in the first embodiment, the dimensions of respective parts of the pneumatic cushioning material 110 are defined as follows.

w1: The length in a first direction X of one air cell 100 in the first air cell part 101.

h1: The length in a second direction Y of one air cell 100 in the first air cell part 101. Note that, the first direction X and the second direction Y are substantially orthogonal to each other.

w2: The length in the first direction X of one air cell 100 in the second air cell part 102.

h2: The length in the second direction Y of one air cell 100 in the second air cell part 102.

w3: The length in the first direction X of one air cell 100 in the third air cell part 103.

h3: The length in the second direction Y of one air cell 100 in the third air cell part 103.

i1: The length of the first connection 105.

i2: The length of the second connection 106.

T: The thickness of each air cell 100 in the first air cell part 101, the second air cell part 102, and the third air cell part 103.

t: The thickness of the first connection 105 and the second connection 106.

Note that, the dimensions of the respective parts are the dimensions when no load is applied to all the air cells 100, the first connection 105, and the second connection 106.

In each part, w1 to w3, h1 to h3, and T are any length and thickness at which the pneumatic cushioning material has a function as a cushioning material. The i1 and i2 are lengths at which bending is possible as the first rotation axis and the second rotation axis. The t is ally thickness at which rotation is possible around the rotation axis, and t<T.

FIG. 5 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material 110 of the first embodiment to an article 10.

The article 10 illustrated in FIG. 5 is a rectangular parallelepiped. The pneumatic cushioning material 110 is bent 90 degrees on the first rotation axis axr1 and the second rotation axis axr2.

That is, as illustrated in FIG. 5, the pneumatic cushioning material 110 is bent at the first connection 105, and the first air cell part 101 and the second air cell part 102 come in contact with surfaces 10 a and 10 b of the article 10. Furthermore, the pneumatic cushioning material 110 is bent at the second connection 106, and the third air cell part 103 comes in contact with a surface 10 c of the article 10.

FIG. 6 is a perspective view illustrating an example of another method of fastening the pneumatic cushioning material 110 of the first embodiment to the article 10.

As illustrated in FIG. 6, in the pneumatic cushioning material 110, the first air cell part 101 is fastened to the article 10 with a tape 811, and the second air cell part 102 and the third air cell part 103 are fastened to be coupled to each other with a tape 812. In this fastening method, the pneumatic cushioning material 110 is taped to the article 10 at one place, and is taped so that the second air cell part 102 and the third air cell part 103 are coupled to each other.

The pneumatic cushioning material 110 of the first embodiment has the following effects.

The pneumatic cushioning material 110 of the first embodiment can cover the three surfaces 10 a to 10 c of a corner of the article 10 by one pneumatic cushioning material 110. Then, usually, when the article 10 is put into a cardboard box or the like, the pneumatic cushioning material 110 is used to fill a gap between the article 10 and the cardboard box. For this reason, the pneumatic cushioning material 110 is packed in the gap between the article 10 and the cardboard box when the article 10 is put into the cardboard box or the like, so that the pneumatic cushioning material 110 does not fall or shift due to vibration during transportation even when not taped.

Furthermore, the pneumatic cushioning material 110 of the first embodiment can cover the three surfaces 10 a to 10 c constituting the corner of the article 10 by one pneumatic cushioning material 110. Moreover, when taped, the pneumatic cushioning material 110 is only required to be taped at two places, and thus can be easily fastened. As a result, the pneumatic cushioning material 110 of the first embodiment does not fall or shift due to vibration during transportation.

Furthermore, the method of fastening the pneumatic cushioning material 110 of the first embodiment is not limited to fastening it at two places, and for example, the first air cell pail 101 may be fastened at only one place with the tape 811 for fastening the pneumatic cushioning material 110 to the article 10. The pneumatic cushioning material 110 of the first embodiment can be prevented from failing or shifting due to vibration during transportation even when taped at only one place.

Furthermore, since the first connection 105 and the second connection 106 are both air passages, when a load is applied to any of the first to third air cell parts 101 to 103, air in each air cell 100 can be released to other air cells 100 to prevent the air cell 100 from bursting.

Hereinafter, as second to seventh embodiments, pneumatic cushioning materials 110 having different shapes and numbers of air cells 100 in each air cell part will be described. In the second to seventh embodiments, the description of the same configuration as that of the first embodiment will be omitted.

Second Embodiment

FIG. 7 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of the second embodiment.

As illustrated in FIG. 7, the pneumatic cushioning material 110 of the second embodiment includes a triangular air cell 100 in each of a first air cell part 101, a second air cell part 102, and a third air cell part 103. The number of air cells 100 in each air cell part is one.

FIG. 8 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material 110 of the second embodiment to an article 10.

As illustrated in FIG. 8, in the pneumatic cushioning material 110 of the second embodiment, similarly to the first embodiment, the first air cell part 101 and the second air cell part 102 are bent at the first connection 105, and come in contact with a surface 10 a and a surface 10 b of the article 10. Furthermore, the pneumatic cushioning material 110 is bent at the second connection 106, and the third air cell part 103 comes in contact with a surface 10 c of the article 10. Similarly to the first embodiment, the pneumatic cushioning material 110 may or may not be taped.

As a result, also in the pneumatic cushioning material 110 of the second embodiment, three surfaces constituting a corner of the article 10 can be easily covered by one pneumatic cushioning material 110. In addition, the pneumatic cushioning material 110 of the second embodiment has the same effect as that of the first embodiment.

Third Embodiment

FIG. 9 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of a third embodiment.

As illustrated in FIG. 9, the pneumatic cushioning material 110 of the third embodiment includes a triangular air cell 100 in a first air cell part 101, a quadrangular air cell 100 in a second air cell part 102, and a circular air cell 100 partially including a straight side in a third air cell part 103. The number of air cells 100 in each air cell part is one.

Although not illustrated, the pneumatic cushioning material 110 of the third embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, similarly to the first and second embodiments already described. In addition, the pneumatic cushioning material 110 of the third embodiment has the same effect as that of the first embodiment.

Fourth Embodiment

FIG. 10 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of a fourth embodiment,

As illustrated in FIG. 10, the pneumatic cushioning material 110 of the fourth embodiment includes two triangular air cells 100 a and 100 b in a first air cell part 101, and a quadrangular air cell 100 in a second air cell part 102 and a third air cell part 103. The number of air cells 100 in the second air cell part 102 and the third air cell part 103 is one.

Although not illustrated, the pneumatic cushioning material 1110 of the fourth embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, similarly to the first to third embodiments already described. In addition, the pneumatic cushioning material 110 of the fourth embodiment has the same effect as that of the first embodiment.

Fifth Embodiment

FIG. 11 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of a fifth embodiment,

As illustrated in FIG. 11, the pneumatic cushioning material 110 of the fifth embodiment includes four quadrangular air cells 100 a to 100 d in a first air cell part 101, and a quadrangular air cell 100 in a second air cell part 102 and a third air cell part 103. The .number of air cells 100 in the second air cell part 102 and the third air cell part 103 is one.

In the pneumatic cushioning material 110 of the fifth embodiment, an angle ca at which a line segment obtained by extending a first rotation axis axr1 and a line segment obtained by extending a second rotation axis axr2 intersect is less than 90 degrees. By adopting such an angle, the pneumatic cushioning material 110 of the fifth embodiment can also be applied to the article 10 having a polygonal body other than a rectangular parallelepiped.

Furthermore, the pneumatic cushioning material 110 of the fifth embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, similarly to the first to fourth embodiments already described. In addition, the pneumatic cushioning material 110 of the fifth embodiment has the same effect as that of the first embodiment.

Sixth Embodiment

A sixth embodiment is an example of a fastening method different from that of the first embodiment. A configuration of a pneumatic cushioning material 110 is the same as that of the first embodiment.

FIG. 12 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material 110 to an article 10 as the sixth embodiment.

As illustrated in FIG. 12, a shape of the article 10 to which the pneumatic cushioning material 110 is fastened is a polygonal body. In such a method of fastening to the article 10, the pneumatic cushioning material 110 is bent approximately 90 degrees at the fast connection 105. On the other hand, the pneumatic cushioning material 110 is bent at an angle larger than 90 degrees at the second connection 106.

By adopting such a fastening method, the pneumatic cushioning material 110 of the sixth embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, even for the polygonal body. In addition, the pneumatic cushioning material 110 of the sixth embodiment has the same effect as that of the first embodiment.

Seventh Embodiment

FIG. 13 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of a seventh embodiment.

As illustrated in FIG. 13, the pneumatic cushioning material 110 of the seventh embodiment includes a quadrangular air cell 100 at each of a first air cell part 101, a second air cell part 102, and a third air cell part 103. The number of air cells 100 in each air cell part is one.

In the pneumatic cushioning material 110 of the seventh embodiment, in the first connection 105, the second air cell part 102 is obliquely connected to the first air cell part 101. An angle ca at which a line segment obtained by extending a first rotation axis axr1 and a line segment obtained by extending a second rotation axis axr2 intersect is approximately 90 degrees similarly to the first embodiment.

FIG. 14 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material 110 of the seventh embodiment to an article 10.

As illustrated in FIG. 14, a shape of the article 10 to which the pneumatic cushioning material 110 is fastened is a polygonal body. When the pneumatic cushioning material 110 of the seventh embodiment is fastened to such a polygonal article 10, even if the pneumatic cushioning material 110 is fastened by being bent by approximately 90 degrees at the first connection 105, no opening is made between the second air cell part 102 and the third air cell part 103.

By adopting such a fastening method, the pneumatic cushioning material 110 of the seventh embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, even for the polygonal body. In addition, the pneumatic cushioning material 110 of the seventh embodiment has the same effect as that of the first embodiment.

Hereinafter, other embodiments will be further described.

Eighth Embodiment

A pneumatic cushioning material 110 of an eighth embodiment has a configuration in which an angle ca at which a line segment obtained by extending a first rotation axis axr1 and a line segment obtained by ex1ending a second rotation axis axr2 intersect is greater than or equal to 90 degrees. For this reason, the pneumatic cushioning material 110 of the eighth embodiment is particularly suitable for a polygonal object that is not a rectangular parallelepiped. Thus, in the following description, the pneumatic cushioning material 110 of the eighth embodiment will be referred to as a polygonal-application cushioning material 120.

FIG. 15 is a plan view illustrating a configuration of the polygonal-application cushioning material 120 of the eighth embodiment.

As illustrated in FIG. 15, the polygonal-application cushioning material 120 of the eighth embodiment includes a first air cell part 101, a second air cell part 102, and a third air cell part 103, similarly to the first embodiment. The first air cell part 101 and the second air cell part 102 are connected together by the first connection 105. The first air cell part 101 and the third air cell part 103 are connected together by the second connection 106. Both the first connection 105 and the second connection 106 are air passages.

However, the first air cell part 101 and tile second air cell part 102 have one air cell 100. The air cell 100 in the first air cell part 101 is larger than the air cell 100 of the first embodiment. Furthermore, the third air cell part 103 includes two air cells 100 a and 100 b.

In the Polygonal-application cushioning material 120 of the eighth embodiment, a portion where the first connection 105 connecting the first air cell part 101 and the second air cell part 102 together exists has a fan shape. This portion is referred to as a fan-shaped connection 105 a.

The first connection 105 can rotate at least 90 degrees around the first rotation axis axr1, similarly to the first embodiment. Similarly, the second connection 106 can rotate at least 90 degrees around the second rotation axis axr2.

In the eighth embodiment, an angle ca at which a hoe segment obtained by extending a first rotation axis axr1 and a line segment obtained by extending a second rotation axis axr2 intersect is approximately 120 degrees.

That is, in the polygonal-application cushioning material 120 of the eighth embodiment, the angle ca at which the line segment obtained by extending the first rotation axis and the line segment obtained by extending tile second rotation axis intersect is set to be an angle larger than that of the first embodiment by the fan-shaped connection 105 a. Note that, the intersecting angle ca is different from that of the seventh embodiment described above.

In the polygonal-application cushioning material 120 of the eighth embodiment, the angle ca at which the line segment obtained by extending the first rotation axis axr1 and the line segment obtained by extending the second rotation axis axr2 intersect is set to approximately 120 degrees, whereby the pneumatic cushioning material 110 can be easily fastened to a polygonal article 10 other titan the rectangular parallelepiped.

FIG. 16 is a perspective view illustrating an example of a method of fastening the polygonal-application cushioning material 120 of the eighth embodiment to the article 10.

As illustrated in FIG. 16, the polygonal-application cushioning material 120 is bent at the first connection 105, and the first air cell part 101 and the second air cell part 102 come in contact with two surfaces 10 a and 10 b of the article 10. Furthermore, the pneumatic cushioning material 110 is bent at the second connection 106, and the third air cell part 103 comes in contact with a surface 10 c of the article 10. The polygonal-application cushioning material 120 is bent 90 degrees on the first rotation axis axr1 and the second rotation axis axr2.

Note that, although not illustrated, the polygonal-application cushioning material 120 of the eighth embodiment may or may not be taped similarly to the first embodiment

The polygonal-application cushioning material 120 of the eighth embodiment has the following effects.

In the polygonal-application cushioning material 120 of the eighth embodiment, the first air cell part 101 and the second air cell part 102 are connected together by a fan-shaped connection 105 a. For this reason, even for a polyhedral article 10, the three surfaces 10 a to 10 c at the corners of the article 10 can be covered by one polygonal-application cushioning material 120. For this reason, even for the polyhedral article 10, the pneumatic cushioning material 110 does not fall or shift due to vibration during transportation, similarly to the first embodiment.

In addition, the polygonal-application cushioning material 120 of the eighth embodiment has the same effect as that of the first embodiment.

Ninth Embodiment

FIG. 17 is a perspective view for explaining a pneumatic cushioning material 110 of a ninth embodiment.

The pneumatic cushioning material 110 of the ninth embodiment is based on the first embodiment. In the pneumatic cushioning material 110 of the ninth embodiment, portions of a base sheet 108 are separated from each other at a first connection 105 and a second connection 106.

As illustrated in FIG. 17, in a state where the pneumatic cushioning material 110 of the ninth embodiment is arranged on an article 10, a gap is formed at a corner portion of the article 10.

Thus, in the pneumatic cushioning material 110 of the ninth embodiment, it is preferable to fix, for example, portions 101 a, 102 a, and 103 a circled by dotted lines in FIG. 17. Fixing may be performed by being taped, but in the ninth embodiment, a coupling is provided in the pneumatic cushioning material 110 to fasten the separated parts.

FIG. 18 is a plan view illustrating a configuration of the pneumatic cushioning material 110 of the ninth embodiment.

As illustrated in FIG. 18, in the pneumatic cushioning material 110 of the ninth embodiment, a claw part 311 is provided on a second air cell part 102 side of a third air cell part 103, and a hole part 312 is provided on the third air cell part 103 side of the second air cell part 102. Other configurations are the same as those in the first embodiment.

FIG. 19 is a perspective view illustrating an example of a method of fastening, the pneumatic cushioning material 110 of the ninth embodiment to the article 10.

As illustrated in FIG. 19, in the pneumatic cushioning material 110 of the ninth embodiment, the claw part 311 of the third air cell part 103 is caused to pass through and engaged with the hole part 312 of the second air cell part 102 in a state of being arranged on the article 10. In the pneumatic cushioning material 110 of the ninth embodiment, a first coupling 301 is configured in a state where the claw part 311 and the hole part 312 are engaged with each other. The claw part 311 has a shape in which the tip is open in a T shape. It is preferable that the claw pad 311 and the hole part 312 have shapes in which the tip of the T-shaped claw part 311 can pass through the hole part 312 and the tip of the claw part 311 is larger than the opening of the hole part 312.

FIG. 20 is a plan view illustrating another configuration of the pneumatic cushioning material 110 of the ninth embodiment.

As illustrated in FIG. 20, in the pneumatic cushioning material 110 of the ninth embodiment, claw parts 311 are provided on a first air cell part 101 side of the second air cell part 102 and the first air cell part 101 side of the third air cell part 103. Moreover, in the pneumatic cushioning material 110 of the ninth embodiment, hole parts 312 are provided on the second air cell part 102 side and the third air cell part 103 side of the first air cell part 101. Other configurations are the same as those in the first embodiment.

FIG. 21 is a perspective view illustrating an example of another method of fastening the pneumatic cushioning material 110 of the ninth embodiment to the article 10.

As illustrated in FIG. 21, in the pneumatic cushioning material 110 of the ninth embodiment, in a state of being arranged on the article 10, the claw part 311 of the second air cell part 102 is caused to pass through and engaged with the hole part 312 of the first air cell part 101, and the claw part 311 of the third air cell part 103 is caused to pass through and engaged with the hole part 312 of the first air cell part 101. In the pneumatic cushioning material 110 of the ninth embodiment, a second coupling 302 is configured in a state where these claw part 311 and hole part 312 are engaged with each other. The claw part 311 has a shape in which the tip is open in a T shape. It is preferable that the claw part 311 and the hole part 312 have shapes in which the tip of the T-shaped claw part 311 can pass through the hole part 312 and the tip of the claw part 311 is larger than the opening of the hole part 312.

Note that, in the ninth embodiment, only one of the first coupling 301 and the second coupling 302 may be provided., or both may be provided. Furthermore, the minter of fixed portions, that is, the number of the first coupling 301 and the second coupling :302 may be one place of a plurality of places.

The pneumatic cushioning material 110 of the Math embodiment has the following effects.

In the pneumatic cushioning material 110 of the ninth embodiment, the second air cell part 102 and the third air cell part 103 are coupled to each other by the first coupling 301. As a result, in the pneumatic cushioning material 110 of the ninth embodiment, after being installed on the article 10, a shape is maintained in which a portion between the first air cell part 101 and the second air cell part 102, and a portion between the first air cell part 101 and the third air cell part 103 are bent.

Furthermore, in the pneumatic cushioning material 110 of the ninth embodiment, the first air cell part 101 and the second air cell part 102, and the first air cell part 101 and the third air cell pad 103 are coupled to each other by the second coupling 302. As a result, in the pneumatic cushioning material 110 of the ninth embodiment, after being installed on the article 10, a shape is maintained in which a portion between the first air cell part 101 and the second air cell part 102, and a portion between the first air cell part 101 and the third air cell part 103 are bent.

Furthermore, in the ninth embodiment, since the first coupling 301 and the second coupling 302 have a structure in which the claw part 311 and the hole part 312 are engaged with each other, coupling is easy and it is possible to prevent them from being easily separated from each other after the coupling.

Note that, as already described above, only one of the first coupling 301 and the second coupling 302 may be used. Furthermore, although not illustrated, both the first coupling 301 and the second coupling 302 may be provided.

Furthermore, regarding a relationship between the claw part 311 and the hole part 312, they are only required to be impositions on the first air cell part 101 to the third air cell part 103 where they can be engaged with each other, and it is not limited which side has the claw part 311 or the hole part 312. Furthermore, the hole part 312 may be a slit-shaped notch part.

Moreover, a modification of the coupling will be described.

(First Modification of Coupling)

FIG. 22 is an enlarged perspective view illustrating a first modification of the first coupling 301. FIGS. 23 and 24 are enlarged perspective views illustrating a first modification of the second coupling 302.

As illustrated in FIG. 22, in the first modification of the first coupling 301, both the second air cell part 102 and the third air cell part 103 are provided with respective hook-claw parts 313 that engage with each other. The hook-claw part 313 is a type of claw part.

As illustrated in FIG. 23, in the first modification of the second coupling 302, both the first air cell part 101 and the second air cell part 102 are provided with respective hook-claw parts 313 that engage with each other. Similarly, as illustrated in FIG. 24, both the first air cell part 101 and the third air cell part 103 are provided with respective hook-claw parts 313 that engage with each other.

(Second Modification of Coupling)

FIG. 25 is an enlarged plan view illustrating a second modification of the coupling.

In the second modification of the coupling, the claw part 311 is provided on one side of the air cell parts to be coupled to each other, and the hole part 312 is provided on the other side. In the second modification of the coupling, the claw part 311 is provided in a recess 109 provided in the base sheet 108. Furthermore, similarly to the ninth embodiment, the claw part 311 has a shape in which the tip is open in a T shape. Furthermore, the hole part 312 is provided inside the base sheet 108.

It is preferable that the claw part 311 and the hole part 312 have shapes in which the tip of the T-shaped claw part 311 can pass through the hole part 312 and the tip of the claw part 311 is larger than the opening of the hole part 312. Furthermore, also in this modification, the hole part 312 may be a slit-shaped notch part.

The second modification of the coupling configured in this way can be used for both the first coupling 301 and the second coupling 302.

(Third Modification of Coupling)

FIG. 26 is an enlarged plan view illustrating a third modification of the coupling. In the third modification of the coupling, the claw part 311 is provided on one side of the air cell parts to be coupled to each other, and the claw part 311 is provided on the other side as well. The claw part 311 is provided in the recess 109 provided in the base sheet 108. That is, in this modification, the claw parts 311 are respectively provided on both of the air cell parts to be coupled to each other. However, the claw parts 311 are provided so that the positions are slightly shifted from each other. Similarly to the ninth embodiment, the claw part 311 has a shape, in which the tip is open in a T shape. As a result, in the third modification of the coupling, the claw parts 311 can be engaged with and coupled to each other.

The third modification of the coupling configured in this way can be used for both the first coupling 301 and the second coupling 302.

(Fourth Modification of Coupling)

FIGS. 27 and 28 are plan views of the pneumatic cushioning material 110 for explaining a fourth modification of the coupling.

In the fourth modification of the coupling, as illustrated in FIG. 27, a cut 341 is provided in a portion that is the first coupling 301 of the second air cell part 102.

As illustrated in FIG. 28, there is the cut 341 in the pneumatic cushioning material 110, whereby a sheet piece 342 formed in the second air cell part 102 can be bent.

FIG. 29 is a perspective view illustrating a coupled state by the sheet piece 342.

As illustrated in FIG. 29, in the pneumatic cushioning material 110, the sheet piece 342 is bent and overlapped with the third air cell part 103, in a state of being installed on an object. In FIG. 28, a portion denoted by a reference numeral 343 is a portion where the sheet piece 342 is overlapped with the third air cell part 103.

The sheet piece 342 is preferably fastened, for example, at a portion overlapped with the third air cell part 103. For example, the sheet piece 342 may be taped, or may be pasted together at the overlapped portion.

When the sheet piece 342 is pasted at the overlapped portion, a glue or an adhesive may be applied in advance to either the sheet piece 342 or the portion 343 where the sheet piece 342 overlaps. A release paper is attached to a surface to which the glue or the adhesive is applied, and when the pneumatic cushioning material 110 is installed on an object, the release paper is peeled off and the sheet piece 342 is pasted. As a result, the second air cell part 102 and the third air cell part 103 are coupled to each other by the sheet piece 342 as the first coupling 301.

The pneumatic cushioning material 110 of the ninth embodiment, including each modification, has the following effects.

In the pneumatic cushioning material 110 of the ninth embodiment, the parts separated between the air cell parts are coupled by the first coupling 301 and/or the second coupling 302. As a result, in the pneumatic cushioning material 110 of the ninth embodiment, a shape is maintained in which three surfaces of the article 10 are covered.

In addition, the pneumatic cushioning material 110 of the ninth embodiment has the same effect as that of the first embodiment.

Tenth Embodiment

FIG. 30 is a perspective view for explaining a polygonal-application cushioning material 120 of a tenth embodiment.

The polygonal-application cushioning material 120 of the tenth embodiment is based on the eighth embodiment. In the polygonal-application cushioning material 120 of the tenth embodiment, portions of a base sheet 108 are separated from each other at a first connection 105 and a second connection 106.

For this reason, in a pneumatic cushioning material 110 of the tenth embodiment, as illustrated in FIG. 30, a gap is formed at a corner portion of the article 10 in the state of being arranged on an article 10.

Thus, in the polygonal-application cushioning material 120 of the tenth embodiment, it is preferable to fix, for example, portions 101 a, 101 b, 102 a, and 103 a circled by dotted lines in FIG. 30, similarly to the ninth embodiment. Fixing may be performed by being taped, but also in the tenth embodiment, a coupling is provided in the polygonal-application cushioning material 120 to fasten the separated parts, similarly to the ninth embodiment.

FIG. 31 is a plan view illustrating a configuration of the polygonal-application cushioning material 120 of the tenth embodiment.

As illustrated in FIG. 31, in the polygonal-application cushioning material 120 of the tenth embodiment, a claw part 311 is provided on a second air cell part 102 side of a third air cell part 103, and a hole part 312 is provided on the third air cell part 103 side of the second air cell part 102. Furthermore, in the polygonal-application cushioning material 120 of the tenth embodiment, claw parts 311 are provided on a first air cell part 101 side of the second air cell part 102 and the first air cell part 101 side of the third air cell part 103. Moreover, in the polygonal-application cushioning material 120 of the tenth embodiment, hole parts 312 are provided on the second air cell part 102 side and the third air cell part 103 side of the first air cell part 101. Other configurations are the same as those in the eighth embodiment.

FIG. 32 is a perspective view illustrating an example of a method of fastening the polygonal-application cushioning material 120 of the tenth embodiment to the article 10.

In the polygonal-application cushioning material 120 of the tenth embodiment, the claw part 311 of the third air cell part 103 is caused to pass through and engaged with the hole part 312 of the second air cell part 102 in a state of being arranged on the article 10. In the polygonal-application cushioning material 120 of the tenth embodiment, a first coupling 301 is configured in a state where the claw part 311 and the hole part 312 are engaged with each other,

Furthermore, in the polygonal-application cushioning material 120 of the tenth embodiment, in a state of being arranged on the article 10, the claw part 311 of the second air cell part 102 is caused to pass through and engaged with the hole part 312 of the first air cell part 101, and the claw part 311 of the third air cell part 103 is caused to pass through and engaged with the hole part 312 of the first air cell part 101. In the polygonal-application cushioning material 120 of the tenth embodiment, a second coupling 302 is configured in a state where these claw part 311 and hole part 312 are engaged with each other.

Note that, also in the tenth embodiment, similarly to the ninth embodiment, only one of the first coupling 301 and the second coupling 302 may be provided, or both may be provided. Furthermore, the number of fixed portions, that is, the number of the first coupling 301 and the second coupling 302 may be one place or a plurality of places. Furthermore, the claw part 311 has a shape in which the tip is open in a T shape. It is preferable that the claw part 311 and the hole part 312 have shapes in which the lip of the T-shaped claw part 311 can pass through the hole part 312 and the tip of the claw part 311 is larger than the opening of the hole part 312.

The polygonal-application cushioning material 120 of the tenth embodiment has the following effects.

In the polygonal-application cushioning material 120 of the tenth embodiment, the second air cell part 102 and the third air cell part 103 are coupled to each other by the first coupling 301. As a result, in the polygonal-application cushioning material 120 of the tenth embodiment, after being installed on the article 10, a shape is maintained in which a portion between the first air cell part 101 and the second air cell part 102, and a portion between the first air cell part 101 and the third air cell part 103 are bent.

Furthermore, in the polygonal-application cushioning material 120 of the tenth embodiment, the first air cell part 101 and the second air cell part 102, and the first air cell part 101 and the third air cell part 103 are coupled to each other by the second coupling 302. As a result, in the polygonal-application cushioning material 120 of the tenth embodiment, after being installed on the article 10, a shape is maintained in which a portion between the first air cell part 101 and the second air cell part 102, and a portion between the first air cell pail 101 and the third air cell part 103 are bent,

Furthermore, hi the polygonal-application cushioning material 120 of the tenth embodiment, since the first coupling 301 and the second coupling 302 have a structure in which the claw part 311 and the hole part 312 are engaged with each other, coupling is easy and it is possible to prevent them from being easily separated from each other after the coupling.

Note that, although not illustrated, only one of the first coupling 301 and the second coupling 302 may be used.

Furthermore, regarding a relationship between the claw part 311 and the hole part 312, they are only required to be in positions on the first air cell part 101 to the third air cell part 103 where they can be engaged with each other, and it is not limited which side has the claw pad 311 or the hole part 312. Furthermore, the hole part 312 may be a slit-shaped notch part.

Moreover, also in the first coupling 301 and the second coupling 302 of the polygonal-application cushioning material 120 of the tenth embodiment, various modifications of the coupling described above can be adopted.

Eleventh Embodiment

FIG. 33 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of an eleventh embodiment.

The pneumatic cushioning material 110 of the eleventh embodiment is based on the first embodiment. In the pneumatic cushioning material 110 of the eleventh embodiment, polygonal lines 401 to 403 are provided at a portion of a base sheet 108 where there is a first connection 105. Other configurations arc the same as those in the first embodiment. It is preferable that portions of the polygonal lines 101 to 403 are processed to be easily folded at the portions of the polygonal lines 401 to 403. The portions of the polygonal lines 401 to 403 are processed to be easily folded, so that the portions can be folded neatly when they are fastened to an article 10 of the pneumatic cushioning material 110.

FIG. 34 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material 110 of the eleventh embodiment to the article 10.

As illustrated in FIG. 34, a shape of the article 10 to which the pneumatic cushioning material 110 is fastened is a polygonal body. In such a method of fastening to the article 10, the pneumatic cushioning material 110 is arranged on the article 10 while being folded at the portions of the polygonal lines 401 to 403.

The pneumatic cushioning material 110 of the eleventh embodiment has the following effects.

The pneumatic cushioning material 110 of the eleventh embodiment is provided with the polygonal lines 401 to 403 to be easily bent. The pneumatic cushioning material 110 of the eleventh embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, even for a polygonal body, by being provided with the polygonal lines 401 to 403.

In addition, the pneumatic cushioning material 110 of the eleventh embodiment has the same effect as that of the first embodiment.

Twelfth Embodiment

FIG. 35 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of a twelfth embodiment.

Polygonal lines 401 to 403 of the pneumatic cushioning material 110 of the twelfth embodiment are provided in opposite directions as compared with the eleventh embodiment. Other configurations are the same as those in the eleventh embodiment.

FIG. 36 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material 110 of the, twelfth embodiment to an article 10.

As illustrated in FIG. 36, a shape of the article 10 to which the pneumatic cushioning material 110 is fastened is a polygonal body. In such a method of fastening to the article 10. The pneumatic cushioning material 110 is arranged on the article 10 while being folded at the portions of the polygonal lines 401 to 403.

The pneumatic cushioning material 110 of the twelfth embodiment has the following effects.

The pneumatic cushioning material 110 of the twelfth embodiment is provided with the polygonal lines 401 to 403 to be easily bent. The pneumatic cushioning material 110 of the twelfth embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, even for a polygonal body, by being provided with the polygonal lines 401 to 403. Moreover, in the pneumatic cushioning material 110 of the twelfth embodiment, it is possible to prevent a second air cell part 102 and a third air cell part 103 from making an opening. In addition, the pneumatic cushioning material 110 of the twelfth embodiment has the same effect as that of the first embodiment.

Thirteenth Embodiment

FIG. 37 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of a thirteenth embodiment.

Polygonal lines 401 to 403 of the pneumatic cushioning material 110 of the thirteenth em tent extend from a first connection 105 in the outer peripheral direction and are not on the first connection 105. Furthermore, the pneumatic cushioning material 110 of the thirteenth embodiment includes a cut 410 in the same direction as a direction from the first connection 105 to a third air cell part 103 of a base sheet 108. Other configurations are the same as those in the eleventh embodiment.

FIG. 38 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material 110 of the thirteenth embodiment to an article 10.

As illustrated in FIG. 38, a shape of the article 10 to which the pneumatic cushioning material 110 is fastened is a polygonal body. In such a method of fastening to the article 10, the pneumatic cushioning material 110 is arranged on the article 10 while being folded at the portions of the polygonal hues 401 to 403. At this time, a portion of the cut 410 is opened, and installation is facilitated.

The pneumatic cushioning material 110 of the thirteenth embodiment has the following effects.

The pneumatic cushioning material 110 of the thirteenth embodiment is provided with the polygonal lines 401 to 403 to be easily bent. The pneumatic cushioning material 110 of the thirteenth embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, even for a polygonal body, by being provided with the polygonal lines 401 to 403. Furthermore, since the polygonal lines 401 to 103 of the pneumatic cushioning material 110 of the thirteenth embodiment do not pass over the first connection 105, the first connection 105 is not folded. For this reason, air easily flows through the first connection 105 as an air passage. In addition, the pneumatic cushioning material 110 of the thirteenth embodiment has the same effect as that of the first embodiment.

Fourteenth Embodiment

FIG. 39 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of a fourteenth embodiment.

The pneumatic cushioning material 110 of the fourteenth embodiment is different from the thirteenth embodiment in directions of the polygonal lines 401 to 403 and a direction of the cut 410 provided in the portion of the base sheet 108. Other configurations are the same as those in the thirteenth embodiment.

FIG. 40 is a perspective view illustrating an example of a method of fastening the pneumatic cushioning material 110 of the fourteenth embodiment to an article 10.

As illustrated in FIG. 40, a shape of the article 10 to which the pneumatic cushioning material 110 is fastened is a polygonal body. In such a method of fastening to the article 10, the pneumatic cushioning material 110 is arranged on the article 10 while being folded at the portions of the polygonal lines 401 to 403. At this time, a portion of the cut 410 is opened, and installation is facilitated.

The pneumatic cushioning material 110 of the fourteenth embodiment has the following effects.

The pneumatic cushioning material 110 of the fourteenth embodiment is provided with the polygonal lines 401 to 403 to be easily bent. The pneumatic cushioning material 110 of the fourteenth embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, even for a polygonal body, by being provided with the polygonal lines 401 to 103. Furthermore, since the polygonal lines 401 to 403 of the pneumatic cushioning material 110 of the fourteenth embodiment do not pass over the first connection 105, the first connection 105 is not folded. For this reason, air easily flows through the first connection 105 as an air passage. Moreover, in the pneumatic cushioning material 110 of the fourteenth embodiment, it is possible to prevent a second air cell part 102 and a third air cell part 103 from making an opening. In addition, the pneumatic cushioning material 110 of the fourteenth embodiment has the same effect as that of the first embodiment.

Fifteenth Embodiment

FIG. 41 is a plan view illustrating a configuration of a pneumatic cushioning material 110 of a fifteenth embodiment.

As illustrated by the white arrow in the figure, a first connection 105 of the pneumatic cushioning material 110 of the fifteenth embodiment is provided closer to a third air cell part 103 side as compared with the eleventh embodiment. Other configurations are the same as those in the eleventh embodiment.

FIG. 42 is a perspective view illustrating an example of the method of fastening the pneumatic cushioning material 110 of the fifteenth embodiment to an article 10.

As illustrated in FIG. 42, a shape of the article 10 to which the pneumatic cushioning material 110 is fastened is a polygonal body. In such a method of fastening to the article 10, the pneumatic cushioning material 110 is arranged on the article 10 while being folded at the portions of the polygonal lines 401 to 403.

The pneumatic cushioning material 110 of the fifteenth embodiment has the following effects.

The pneumatic cushioning material 110 of the fifteenth embodiment is provided with the polygonal lines 401 to 403 to be easily bent. The pneumatic cushioning material 110 of the fifteenth embodiment can easily cover three surfaces constituting a corner of the article 10 by one pneumatic cushioning material 110, even for a polygonal body, by being provided with the polygonal lines 401 to 403. Furthermore, in the pneumatic cushioning material 110 of the fifteenth embodiment, the first connection 105 is brought closer to the end of a band-shaped portion connecting a first air cell part 101 and a second air cell part 102 to each other, whereby the polygonal lines 401 to 403 do not pass over the first connection 105, so that the first connection 105 is not folded. For this reason, air easily flows through the first connection 105 as an air passage. In addition, the pneumatic cushioning material 110 of the fifteenth embodiment has the same effect as that of the first embodiment

Sixteenth Embodiment

A sixteenth embodiment is ail example of a product form of a pneumatic cushioning material 110.

FIG. 43 is a plan view illustrating a configuration of the pneumatic cushioning material 110 of the sixteenth embodiment.

In the sixteenth embodiment, a plurality of pneumatic cushioning materials 110 is continuously arranged on one base sheet 108. In FIG. 43, the plurality of pneumatic cushioning materials 110 is the pneumatic cushioning materials 110 of the first embodiment. However, the plurality of pneumatic cushioning materials continuously arranged on the base sheet 108 may be a configuration of other embodiments.

The base sheet 108 includes perforations 201 for separating the plurality of pneumatic cushioning materials 110 into individual pieces.

The pneumatic cushioning material 110 of the sixteenth embodiment has the following effects.

In the sixteenth embodiment, the plurality of pneumatic cushioning materials 110 is arranged on one base sheet 108. As a result, the sixteenth embodiment facilitates provision of the plurality of pneumatic cushioning materials 110 to users. Furthermore, in the sixteenth embodiment, since the perforations 201 are included between the individual pneumatic cushioning materials 110, they can be easily separated from the perforations 201 one by one at the time of use. In addition, the sixteenth embodiment has the same effect as that of the other embodiments depending on the individual pneumatic cushioning materials 110 arranged on one base sheet 108.

Seventeenth Embodiment

A seventeenth embodiment is an example of a manufacturing form of a pneumatic cushioning material 110.

FIG. 44 is a plan view illustrating a configuration of the pneumatic cushioning material 110 of the seventeenth embodiment.

In the seventeenth embodiment, a plurality of pneumatic cushioning materials 110 is manufactured on one base sheet 108. For this purpose, a plurality of air inlets is provided for pumping air into the base sheet 108. The air inlet is sealed after air pumping. On the other hand, air is shut off at a portion where the plurality of pneumatic cushioning materials 110 is separated. In the figure, the portion where the air is shut off is indicated by hatching. The number of pneumatic cushioning materials 110 formed on one base sheet 108 is not particularly limited.

The individual pneumatic cushioning mate gals 110 illustrated in FIG. 44 include the hook-claw part 313 described as the first modification of the first coupling 301 in the ninth embodiment. The pneumatic cushioning material 110 of the seventeenth embodiment may have a configuration of another embodiment.

When the pneumatic cushioning material 110 of the seventeenth embodiment is used, the plurality of pneumatic cushioning materials 110 is separated into individual pieces.

The pneumatic cushioning material 110 of the seventeenth embodiment has the following effects.

In the seventeenth embodiment, one base sheet 108 is provided with the air inlet corresponding to each of the plurality of pneumatic cushioning materials 110. As a result, in the seventeenth embodiment, the plurality of pneumatic cushioning materials 110 can be easily manufactured by pumping air from the air inlet. In addition, the seventeenth embodiment has the same effect as that of the other embodiments depending on the individual pneumatic cushioning materials 110 manufactured on one base sheet 108.

Eighteenth Embodiment

An eighteenth embodiment is an example of a manufacturing form of a pneumatic cushioning material 110.

FIG. 45 is a plan view illustrating a configuration of the pneumatic cushioning material 110 of the eighteenth embodiment.

In the eighteenth embodiment, the base sheet 108 of the seventeenth embodiment is further provided with perforations 201 for separating a plurality of the pneumatic cushioning materials 110. Other configurations are the same as those in the seventeenth embodiment.

The pneumatic cushioning material 110 of the eighteenth embodiment has the following effects.

In the eighteenth embodiment, since the perforations 201 are included between the individual pneumatic cushioning materials 110, they can be easily separated from the perforations 201 one by one at the time of use. In addition, the eighteenth embodiment has the same effect as that of the seventeenth embodiment.

Nineteenth Embodiment

A nineteenth embodiment is an example of a manufacturing form of a pneumatic cushioning material 110.

FIG. 46 is a plan view illustrating a configuration of the pneumatic cushioning material 110 of the nineteenth embodiment.

In the nineteenth embodiment, similarly to the eighteenth embodiment, a base sheet 108 is provided with perforations 201 for separating a plurality of pneumatic cushioning materials 110. The individual pneumatic cushioning materials 110 in the nineteenth embodiment have the configuration of the pneumatic cushioning material 110 of the first embodiment. Other configurations are the same as those in the eighteenth embodiment.

As described above, even if there is no hook-claw part 313 or the like, the pneumatic cushioning material 110 can be manufactured similarly to the eighteenth embodiment, and moreover, the individual pneumatic cushioning materials 110 can be easily separated by the perforations 201. In addition, the nineteenth embodiment has the same effect as that of the eighteenth embodiment.

COMPARATIVE EXAMPLE

Here, to understand each of the embodiments described above, a pneumatic cushioning material laving only two air cells will be described as a comparative example.

FIG. 47 is a plan view illustrating a configuration of a pneumatic cushioning material 1000 of the comparative example.

As illustrated in FIG. 47, in the pneumatic cushioning material 1000 of the comparative example, a first air cell. 1001 and a second air cell 1002 each containing air are connected together by a connection 1003. The connection 1003 is an air passage. The connection allows air to now between the first air cell 1001 and the second air cell 1002 by the air passage.

FIGS. 48A and 48B are perspective views illustrating a state in which the pneumatic cushioning material 1000 of the comparative example is taped to an article 10.

The pneumatic cushioning material 1000 is fastened to the article 10 using tapes 811 and 812. The tape 811 fastens a portion of the first air cell 1001 to a surface 10c of the article 10. The tape 812 fastens a portion of the second air cell 1002 to a surface 10 b of the article 10. Thus, the pneumatic cushioning material 1000 comes in contact with only the two surfaces of the article 10.

As illustrated in FIG. 48A, the tape 812 of the pneumatic cushioning material 1000 may be peeled off due to vibrations or shocks during transportation.

As illustrated in FIG. 48B. When the tape 812 is peeled off, the pneumatic cushioning material 1000 is in a state of being fastened to the article 10 only with the tape 811 fastening the first air cell 1001 side.

In the pneumatic cushioning material 1000 in such a state, the second air cell 1002 side is shifted from the article 10. If this state continues, the second air cell 1002 side will sway due to vibration during transportation, and the first air cell 1001 side may also be peeled off. Then, the entire pneumatic cushioning material 1000 falls away from the article 10.

FIG. 49 is a perspective view illustrating a state in which two pneumatic cushioning materials 1000 of the comparative example are taped to the article 10.

As illustrated in FIG. 49, when using two pneumatic cushioning materials 1000, it is necessary to fasten each of the two pneumatic cushioning materials 1000 with tapes 811 and 812. Thus, when using two pneumatic cushioning materials 1000, work is necessary to tape them at a total of four places.

FIG. 50 is a perspective view illustrating a state in which three pneumatic cushioning materials 1000 of the comparative example are taped to the article 10.

As illustrated in FIG. 50, when using three pneumatic cushioning materials 1000, it is necessary to fasten each of the three pneumatic cushioning materials 1000 with tapes 811 and 812. Thus, when using three pneumatic cushioning materials 1000, work is necessary to tape them at a total of six places.

As illustrated in FIGS. 49 and 50, a plurality of the pneumatic cushioning materials 1000 is used, whereby two or more surfaces of the article 10 can be covered. However, a burden of work for fastening a plurality of places with tapes is not light.

Furthermore, although not illustrated, the pneumatic cushioning material 1000 including two air cells 100 may be used together with, for example, corrugated cardboard assembled in a shape coveting three surfaces constituting a corner of the article 10. However, to use such corrugated cardboard, work is necessary for assembling the corrugated cardboard in advance in a form to cover the three surfaces constituting the corner of the article 10, or pasting the pneumatic cushioning material 1000 to the corrugated cardboard. For this reason, when using such corrugated cardboard, a lot of work is required. Furthermore, when using corrugated cardboard, it is necessary to separate a plastic material and a paper material from a viewpoint of environmental protection, so it is necessary to separate the pneumatic cushioning material 1000 and the corrugated cardboard at the time of disposal. For this reason, when corrugated cardboard is used, another work load may occur at the time of disposal.

As described above, the pneumatic cushioning material 1000 of the comparative example can cover only two surfaces of the article 10 by one piece. Furthermore, when covering the three surfaces of the article 10, the pneumatic cushioning material 1000 of the comparative example requires a lot of work.

In this regard, each of the embodiments described above can cover three surfaces of the article 10 by one pneumatic cushioning material 110 (including the polygonal-application cushioning material 120, the same applies hereinafter). Furthermore, the pneumatic cushioning material 110 of each of the embodiments described above can be arranged to cover the three surfaces of the article 10 without being taped. Furthermore, the pneumatic cushioning material 110 of each of the embodiments described above does not shift or fall during transportation even if the tape is peeled off when being taped.

Furthermore, the pneumatic cushioning material 110 of each of the embodiments described above can protect the three surfaces constituting the corner of the article 10 with a simple work without using corrugated cardboard or the like. For this reason, since the pneumatic cushioning material 110 of the first embodiment does not use corrugated cardboard or the like, it is only necessary to discard the pneumatic cushioning material 110 as a plastic material at the time of disposal.

Although the embodiments of the present invention have been described above, various modifications are possible. In particular, the configurations of the embodiments can combine their elements with each other.

Furthermore, in the embodiment, the shape of each air cell 100 may be an elliptical shape of a circular shape in a plan view, for example, a rugby ball shape, an egg shape, or a spherical shape, in addition to the shape described as the embodiment.

Although embodiments of the present invention have been described and illustrated in detail, the disclosed embodiments are made for purposes of illustration and example only and not limitation. The scope of the present invention should be interpreted by terms of the appended claims.

Furthermore, the present invention can be modified in various ways based on configurations described in the claims, and these are also within the scope of the present invention. 

What is claimed is:
 1. A pneumatic cushioning material comprising: a first air cell part including at least one air cell containing air; a second air cell part including, at least one air cell containing air; a third air cell part including at least one air cell containing air; a first connection that connects the first air cell part and the second air cell part together; a second connection that connects the first air cell part and the third air cell part together, wherein the first connection is bendable by a first rotation axis, the second connection is bendable by a second rotation axis, and an angle at which a line segment obtained by extending the first rotation axis and a line segment obtained by extending the second rotation axis intersect is in a range of greater than 0 degrees and less than 180 degrees.
 2. The pneumatic cushioning material according to claim 1, wherein the angle at which the line segment obtained by extending the first rotation axis and the line segment obtained by extending the second rotation axis intersect is approximately 90 degrees.
 3. The pneumatic cushioning material according to claim 1, further comprising a first coupling that couples the second air cell part and the third air cell part together when the first connection and the second connection each are bent.
 4. The pneumatic cushioning material according to claim 3, wherein the first coupling includes a claw part on any one of the second air cell part or the third air cell part, and includes, on another of the second air cell part or the third air cell part, any one of a hole part, a notch part, or a claw part that engages with the claw part on the one.
 5. The pneumatic cushioning material according to claim 3, wherein the first coupling includes a bendable sheet piece in any one of the second air cell part or the third air cell part.
 6. The pneumatic cushioning material according to claim further comprising a second coupling that couples separated parts together when there are the separated parts between the first air cell part and the second air cell part, and between the first air cell part and the third air cell part.
 7. The pneumatic cushioning material according to claim 6, wherein the second coupling includes a claw part on one of the separated parts, and includes, on another of separated parts, any one of a hole part, a notch part, or a claw part that engages with the claw part on the one. 